then in mid-february, an fbi agent along with the department of justice investigator paid a visit to stepien's home. we're also learning the u.s. attorney's office tried to contact former deputy chief of staff bridget kelly and her parents. both stepien and kelly were very close to christie, and they are the only two to publicly say they will not turn over any documents. so where is this investigation going next? joining me now, former u.s. attorney kendall coffey. kendall, thanks for your time tonight. >> hey, thanks for inviting me, reverend. >> a criminal investigation, what does that tell you, kendall? >> well, it tells you that they decided that there are indeed potential federal crimes here. they've got three highly qualified and experienced federal prosecutors assigned with probably lots of federal agents. so this is very, very serious business. and it's a fascinating development, the way they seem to be putting a maximum of pressure early on, on two of the key people, bridget kelly and of course stepien, who, if anybody knows one way or the other whether chris christie is imp